src/test/run-pass/svh-add-nothing.rs

// note that these aux-build directives must be in this order
// aux-build:svh-a-base.rs
// aux-build:svh-b.rs
// aux-build:svh-a-base.rs

// pretty-expanded FIXME #23616

extern crate a;
extern crate b;

fn main() {
    b::foo()
}